2123204443 has 8 divisors (see below), whose sum is σ = 2250793440. Its totient is φ = 1995914880.

The previous prime is 2123204429. The next prime is 2123204453. The reversal of 2123204443 is 3444023212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123204443 - 2⁹ = 2123203931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123204453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60168 + ... + 88693.

It is an arithmetic number, because the mean of its divisors is an integer number (281349180).

Almost surely, 2^2123204443 is an apocalyptic number.

2123204443 is a deficient number, since it is larger than the sum of its proper divisors (127588997).

2123204443 is a wasteful number, since it uses less digits than its factorization.

2123204443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149717.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2123204443 is about 46078.2426205688. The cubic root of 2123204443 is about 1285.2785848473.

Adding to 2123204443 its reverse (3444023212), we get a palindrome (5567227655).

The spelling of 2123204443 in words is "two billion, one hundred twenty-three million, two hundred four thousand, four hundred forty-three".